42030122125 has 16 divisors (see below), whose sum is σ = 55539100656. Its totient is φ = 31646208000.

The previous prime is 42030122119. The next prime is 42030122131. The reversal of 42030122125 is 52122103024.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42030122119) and next prime (42030122131).

It can be written as a sum of positive squares in 8 ways, for example, as 23220273924 + 18809848201 = 152382^2 + 137149^2 .

It is not a de Polignac number, because 42030122125 - 2³ = 42030122117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42030122096 and 42030122105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9887316 + ... + 9891565.

It is an arithmetic number, because the mean of its divisors is an integer number (3471193791).

Almost surely, 2^42030122125 is an apocalyptic number.

It is an amenable number.

42030122125 is a deficient number, since it is larger than the sum of its proper divisors (13508978531).

42030122125 is a wasteful number, since it uses less digits than its factorization.

42030122125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19778913 (or 19778903 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 42030122125 its reverse (52122103024), we get a palindrome (94152225149).

The spelling of 42030122125 in words is "forty-two billion, thirty million, one hundred twenty-two thousand, one hundred twenty-five".